The Facebook app will allow you to compete in duels as one of the three classes including Sharpshooter (accuracy), Outlaw (power), and Fast hands (speed) and lets you level up, earn achievements, and compete among the global leaderboards.

With your help and devoted play during this initial beta launch period beginning today, we should have all the gameplay variables fine-tuned soon. Stay tuned to hear when we’re out of beta and also for future updates to Red Dead Redemption: Gunslingers by making sure you’re a Fan of Rockstar Games on Facebook.

Red Dead Redemption will be released for PS3 and Xbox 360 on May 18, 2010. Dates for the PC version are unannounced but expected to be shortly after the console release.